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D3.js pow.range() Function

  • Last Updated : 23 Aug, 2020

The pow.range() function in d3.js is used to set the scale’s range to the specified array of values that must contain two or more than two values. The elements in the range can be number or string.

Syntax:

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pow.range([range]);

Parameters: This function takes a single parameter that is given above and described below.

  • [range]: This is an array that contains the range for the domain specified.

Return Values: This function does not return any value.



Example 1:

html




<!DOCTYPE html>
<html lang="en">
  
<head>
    <meta charset="UTF-8" />
    <meta name="viewport" path1tent=
        "width=device-width,initial-scale=1.0" />
  
    <script src="https://d3js.org/d3.v4.min.js">
    </script>
</head>
  
<body>
    <script>
        var pow = d3.scalePow()
  
            // Setting domain for the scale.
            .domain([-10, 10])
          
            // Range of numbers
            .range([10, 20, 30, 40, 50, 60])
            .exponent(2);
        console.log("The range of this is "
                + "[10,20,30,40,50,60]: ");
        console.log("pow(-4): " + pow(-4));
        console.log("pow(4): " + pow(4));
        console.log("pow(2.4): " + pow(2.4));
    </script>
</body>
  
</html>

Output:

Example 2:

html




<!DOCTYPE html>
<html lang="en">
  
<head>
    <meta charset="UTF-8" />
    <meta name="viewport" path1tent=
        "width=device-width,initial-scale=1.0" />
  
    <script src="https://d3js.org/d3.v4.min.js">
    </script>
</head>
  
<body>
    <script>
        var pow = d3.scalePow()
  
            // Setting domain for the scale.
            .domain([-10, 10])
          
            // Range of colors
            .range(["red", "blue", "green", "white"])
            .exponent(2);
        console.log("The range of this is"
            + " [red,blue,green,white]: ");
        console.log("pow(-4): " + pow(-4));
        console.log("pow(4): " + pow(4));
        console.log("pow(2.4): " + pow(2.4));
    </script>
</body>
  
</html>

Output:




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